DO NOT MERGE ANYWHERE GATT: Move connection parameters to config.xml

This makes it easier for OEMs to customize the high prioriy, balanced
and low power mode connection parameters through overlays.

Bug: 18013697
Change-Id: I8b486b772fdb871f2800238cb5e45c4ff0663952
(cherry-picked from d65009d591017319a429be1a920fdf763e71cebd)
2 files changed